Nawi, S.N. Mat and Khandaker, Mayeen Uddin * and Abdul Sani, S. F. and Lam, S. E. and Osman, Hamid and Md Ishak, N. A. I and Rahman, S. and Bradley, D.A. * (2024) Thermoluminescence characterization of flooring tiles from Malaysia for potential use in retrospective dosimetry. Radiation Measurements, 176. pp. 1-13. ISSN 1879-0925
Full text not available from this repository. (Request a copy)Abstract
In the event of natural disasters or technical malfunctions at nuclear sites, the surrounding media, including individuals, may be subject to unforeseen radiation exposure. Thus, it is not possible to determine the precise level of radiation exposure that each person has received in this scenario. To handle such a problem, the use of retrospective dosimetry can offer an accurate evaluation of the radiation dose acquired as a result of such incidents. This information enables the development of suitable remedial actions. Normally, in the region that has been impacted, several artifacts can serve as natural dosimeters. The study involved the utilization of locally available seven different brands of flooring tiles in Malaysia for the possibility of being used in retrospective dosimetry through exposures to 60Co gamma-rays within a range of 10–200 Gy. To understand the luminescence features of this material, a convenient thermoluminescence (TL) technique has been employed. The dosimetric features of the samples were investigated, including their effective atomic numbers (Zeff), reproducibility, glow curve, dose response, sensitivity, linearity index, energy dependency and fading, which is representative of the usual TL method. Additionally, by analyzing the glow curves of the irradiated samples together with the peak shape method and the initial rise methods, several kinetic parameters, including the kinetic orders (b), activation energy (E) or trap depth, frequency factor (s) or escape probability, and trap lifetime (τ) were calculated. Different kinds of tiles exhibit distinct scenarios in terms of kinetic characteristics. T1 sample exhibits the highest degree of sensitivity and a highly linear dose response among the tile samples that were evaluated. Also, T1, T3, and T5 samples show minimal loss of TL intensity (∼38–39%) one year after irradiation, making them ideal for use as a retrospective dosimeter.
| Item Type: | Article |
|---|---|
| Additional Information: | Article number: 107182 |
| Uncontrolled Keywords: | thermoluminescence; retrospective dosimetry; flooring tiles; dosimetric properties; kinetic parameters |
| Subjects: | Q Science > QC Physics |
| Divisions: | Sunway University > Faculty of Engineering and Technology [formerly School of Engineering and Technology until 14 November 2025; School of Science and Technology until 2020] > Research Centre for Carbon Dioxide Capture and Utilization |
| Depositing User: | Ms Yong Yee Chan |
| Related URLs: | |
| Date Deposited: | 18 May 2026 03:09 |
| Last Modified: | 18 May 2026 03:09 |
| URI: | http://repository.sunway.edu.my/id/eprint/3367 |
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